Submergible illuminating device



FIG '6 Aug. 18, 1936. I B] NIGHTlNGALE 2,051,175

SUBMERGIBLE ILLUMINAT ING DEVI CE Filed. July 30, 1932 2 Sheets-Sheet 2 .built for. illuminating apparatus, and that may -1be conveniently relamped without lowering the UNITED: STATES Patented Aug. 18, 1936 :eArEN-T OFFICE SUBMERGIVBLE ILLUMIKlZHING DEVICE Francis B. Nightingale, Pasadena; Calif. Application July "so, 1932. Serial N6. 626,346

6 Claims. (01. 246-25) My invention relates particularly to that class of illuminating devices that may be employed for directing light rays through water in swimming pools, aquariums and the like, and is especially directed to lighting fixtures that may be perma- I nently attached in direct light raysthrough the pool. ,v V

i The principal objects of my invention are to such submerged relation as to provide a submergible lighting fixture that may be applied to the Walls of pools not especially water level of the pool.

.. Other. object's'of my invention are to provide a submergible lig hting fixture having an extension, projecting above the water level, through which access may be afforded to the interior of Further objects of 'vide' alighting fixture that may be readily removed and replaced while I ,merged.

the lamp chamber at all times.

my invention are to prowith a light supporting unit 'the lightprojecting body of said fixture is sub- My invention further includes a lighting fixture having light projecting windows angularly inclined through which reflected light rays are directed through the water of the-pool.

,Specific ally stated; the form of my invention as hereinafter described comprises a windowed receiving chamber and havingan body tapering downwardly and inclosing thelamp fjecting upwardly and providing an opening disposed above the water level arranged to be sealed by a suitably provided closure.

Said extension includes a recess having apertures through which line wires including make-and-break electrical connection with a lamp within the pass,- said lamp being suitably mounted-ongalamp support forming a removable and replaceableunit .a fuse and plug receiving. socket "series with said lamp,

which not only supports the lamp but also carries mounted in so that when supported in the fixturethe make-and-break electrical connection, including a plug, may be engaged with said plug receiving socket by" manipulation through the opening in said extension.

My invention also includes all of the various .1 r i ovel features of construction and arrangement as hereinafter more definitely specified.

' In the accompanying drawings, Figure 1 is a perspective'vi'ew of an illuminating fixture constructed in 'accordance'with my invention as-applied to the plane wall of a pool; Fig. 2 is a centralv ertical sectional View of said illuminating '1:

fixture taken transversely through-the front'and,

In said figures, the

. I enclosing the lamp 1), H and I2 having extended to engage extension pro- I is capable of modification, as other side the lamp socket 39 having the lamp has depending therefrom the hangers 4| ipending the reflector 42 embracing the lamp 29,

backwalls of said fixture; Fig. 3 is a plan view of he fixture shown in Figs..1 and 2, on the same scale as Fig. 1, and

showing the closure cap illuminating fixture illustrated in Figs; 1, 2, 3 and 6 comprises the housing restricted chimney 3 having an opening 5 disposed above the water'level 6 The bodyor housing I of the pool 1.

, l4 and I5 through which lag-screws I 6, I1 and I8 may be the fixture to the wall I9 of the pool 7, as illustrated in Fig. 6.

The bottom wall 22 is also substantially triangular and is joined to the front wall 8 by the inclined narrow extension 25 of said front wall 8. The sidewalls relatively converge downwardly housing structure may be employed.

As shown in Fig. 2, the upwardly extending chimney 3 is provided with the shoulder or ledge '36 serving as a support upon which the lamp '"Said supporting frame or plate 31 may rest. lamp supporting frame 31 carries on its under 29 de pending therefrom into the lamp chamber 2, and

.365 shown in Fig. 2.

frame 3,"! is mounted the fuse 43 and the plug-in.

socket 44, connected by the wires 45 and 46 with the lamp socket 39, said frame 31 being provided with the draw-pin having the eye. 41 by which said frame 37 and theparts" carried thereby may be conveniently withdrawn for replacement of the lamp 29 and its associated parts. i V As shown in Figs. 2 and 6, the chimney 3 is provided with a rearwardly projecting protuberance 59 forming thezofiset pocket-50 having the cutlets'lii and 52 to which is connected the line extend.

As shown in Fig. 2,.the

' are connected within the offset pocket 53 by the branch leads 59 and 60 with the switch plug 6i 'connected therewith, the switch shown engaged with the luminate the lamp 29. hen it is desired to withdraw the frame 31 and the lamp 29 and the parts be withdrawn from its socket 44 and be tucked away with its leads 59=and60 into the pocket so as to not interfere with the free withdrawal and'replacement of said frame 31.

The chimney 3 closure 35 preferably conical and having the peripheral flange Q6 provided with apertures 61 in registry with corresponding threaded apertures 3. Said cap or provided with the in the rim of 7 said chimney closure, 65 may preferably be bead it! fitted into' a corresponding groove ll 7 3 and ifdesired, a sealing ring 12 of suitable material may be seated in the rim of said chimney in said groove to provide a watertight seal.

In order to relieve the sealed chamber {from expansive pressures incident. t'o theheating of the lamp 29, a'breathing device comprising apipe i3 is connected to thepocket 53,'and has its free depending end portion enlarged into a bell 15 in which may be mounted a valve 'ball 16 normally I retained by the transversely extendedbar l'l, but

' a wave enters the bell15.

I V The front wall" of inclined and converges'downwar'dly toward the arranged to engage the conical valve seat 19 to prevent water entering the chamber 3" when "Thelillurninating fixture shown in Figs. 4 and 5 is particularly adapted or corner of the pool and has the back of its housing structure 8| malplanes 82 and83, as

a. single window. formed of a'panelcf glass 65 retained by the rim frame 84 secured by the retaining screws 86. Said front wall panel 85is bacln' r The housing .81" is provided with the upwardly extending chimney 81 having the cap or: closure Q protuberance BQpSeeFig.

88, and has the sectoral rearwardly projecting 4, forming the "offset pocket 9fi having the outlets SI and 92 to which the linewire conduit 53, is connected; otherwise, the interior-of the chimney 81 is similar to the chimney 3 shown in Figs. l,'2 'and 3, and the lamp supporting frame' 3l carrying the lamp]! is interchangeable'pwith either'the straight wall or corner fixture.

"formed-of concrete {bottom 91 faced with; tile and its'rim structure s93 provided with a gutter .99 not only serving The application of the fixtures thus described m be best understood from an inspection of Fig. 6, wherein is illustrated said fixtures as applied to the side'and end walls of swimming pool 95 having its walls 96 and new pools alike, and may without lowering the line wires 56 ,and 51 plug-in socket Ml to ii plug 6| may i connected is provided with the capor to be placed in the angle 'disposed'in relatively norbest .illustrated in Fig. 4. this corner fixture'comprises therefrom.

as an overflow for the water I00 of the pool, but afiording a convenient runway for the line wire conduits 53, as indicated in Fig. 6.

My invention is advantageous in luminating fixtures are applicable to both oldand be permanentlylnstalled in either, and the lamps and associated parts may be removed and replaced as a unit level of the water or without danger ofelectrolysis.

I do not desire to limitmy invention to the precise details of construction and arrangement wire conduit 53 including the angle fittingsg5 4, herein set forth, as it is obvious that various and 55 through which theline wires 56and 5 1 I v parting from the essential features of my invention'as defined in the appended claims.

modifications may be madetherein without devided with an extension projecting upwardly and thatthe 11- V opening above the water level and having a recess provided with openings, wire carrying' conduits throughsaid' conduits-and including asoclgetplug arranged to be disposed in said recess when not connected 'with its socket," and 'a lampsupporting unit removable, and replaceable through said extension and carrying a lamp, an associated plug-socket with which said socket plug may be engaged to energize said lamp;-a closure forv said with'said, openings, line wires leading fixture, and pressure relieving means'includinga I check-valve connected with the' interior of said fixture and serving to exclude water.

2; A V :submerglble' lighting {fixture p'mp' an 'opaquehousing forming a lamp, chamberh aving lightprojecting windowsrelatively converging downwardly and outwardly and, arranged to direct light beamslaterally at relatively different angles toward the bottom of a pool, an d anlupwardly --extending open-top. projection having. a V lateral pocket provided with inlet and. outlet apertures for'lin'e wires; said fixture having a wall arranged to bear against the inner surface of r a pool-wall and being extended atrelatively spaced region's parallel with said'pool wall to afford lugs or-wlngs for conveniently attaching the fixture at 7 selected locations to said pool wall."

3. 'A submergible lightin fixture comprising a i housing having'oppositel'y disposedsubstantially V -shaped opaque wallsconnected byan inclined transparent wall and forming a lamp'chamber, said transparent wall being inclined' to dire ct light rays obliquely downward and outward, and having an upwardly projecting reduced hollow extensionthroughlwhich a lamp assembly may beinserted into said lamp chamber and removed F 4. "A "'subm'ergible lighting fixture comprising a,

housing having light projecting means and pro- -vlded with an extension projecting upwardly and opening above the water level, a closureffor' sa'id fixture, and pressurerelieving meansincluding f. acheck vaive normally maintained open'by gr'av- 'ity, .being connected with the interior; of saidfixture and serving toexclude water therefrom.

v .5. Asubmergible lighting fixture comprising a housing forming a lamp chamber and. having light projecting windows relatively; converging downwardly and outwardly and arranged to di rect'light beams laterally at relatively different angles toward the bottom: of the ipool an'd an upwardly extending open top projectionlhaving a lateralpocketprovided with inlet and outlet apertures for line wires. y x

6. A submergible lighting fixture comprising a housing forming a lamp chamber having light projecting Windows relatively converging downwardly and outwardly and arranged to direct light beams laterally at relatively dilferent angles toward the bottom of a pool, and an upwardly extending open top projection having a lateral pocket provided with inlet and outlet apertures for line wires, and provided with supporting FRANCIS B. NIGHTINGALE. 

